Freeze-Form Extrusion Fabrication of Alumina Components Using Aqueous Paste

Abstract

Freeze-form Extrusion Fabrication (FEF) is an environmentally friendly solid freeform fabrication method that uses aqueous pastes to fabricate ceramic-based components. The process uses only small quantities (2 to 4 vol.%) of organic binder. Using the FEF process, 3-D ceramic components have been fabricated from aluminum oxide (Al2O3) by extrusion deposition of Al2O3 paste in a layer-by-layer manner utilizing a 3-D gantry controlled by a computer using Labview software. Sintered samples have achieved 98% of their theoretical density, demonstrating the feasibility of the FEF process.

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Document Details

Document Type
Technical Report
Publication Date
Jul 01, 2006
Accession Number
ADA461294

Entities

People

  • Gregory E Hilmas
  • Michael S. Mason
  • Ming C. Leu
  • Tieshu Huang

Tags

Communities of Interest

  • Air Platforms
  • Space

DTIC Thesaurus Topics

  • Additive Manufacturing
  • Air Force Research Laboratories
  • Aluminum Oxides
  • Computers
  • Extrusion
  • Fabrication
  • Fused Deposition Modeling
  • Geometry
  • Manufacturing
  • Materials
  • Materials Engineering
  • Materials Processing
  • Materials Science
  • Mechanical Properties
  • Selective Laser Melting
  • Selective Laser Sintering
  • Three Dimensional

Fields of Study

  • Materials science

Readers

  • Manufacturing Engineering.
  • Software Engineering